Table 1. Correlations between serum parameters in animals receiving OSP.

Spearman correlation coefficient (r)	Serum phosphate	Serum calcium	Serum PTH	Serum FGF-23
Serum phosphate	X	-0.75**	0.80**	0.85**
Serum calcium	-0.75**	X	-0.55**	-0.69**
Serum PTH	0.80**	-0.55**	X	0.79**
Serum FGF-23	0.85**	-0.69**	0.79**	X

** p<0.01